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The Skylon space plane just got that much closer to reality

It's been a while since we last reported on the British Skylon space plane — a reusable launch vehicle that will be powered by a two-in-one air-breathing rocket engine that can boost the plane to Mach 5.5 and a height of nearly 30 km (18 miles). The latest news is that the theoretic Sabre Engine ain't so theoretic… » 11/28/12 2:40pm 11/28/12 2:40pm